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Question on industrial panels
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<blockquote data-quote="Jc1996" data-source="post: 519327" data-attributes="member: 34069"><p>Hi guys I have a few questions regarding my findings today and wondering if any of you could help one of the guys asked me to have a look at an electrical panel due to him finding voltage from a 24v PSU + to the earth of the panel and the - to earth each readings were 6vac which I was curious why we’d have a reading maybe a floating voltage? The others question that made me think was there was a loose earth from one of the Siemens level control units that was sparking. I checked the panel earth which was all good and live and neutral. I then disconnect the earth to the seimens unit and measured voltage between the seimens earthing terminal to the panel earth which was 110v ac what would this be? I couldn’t work out if there was a fault on the unit which was making the earthing terminal 110v but no fuses were blowing when contacted which also made me think Weather the 110v is being induced via the electronics? </p></blockquote><p></p>
[QUOTE="Jc1996, post: 519327, member: 34069"] Hi guys I have a few questions regarding my findings today and wondering if any of you could help one of the guys asked me to have a look at an electrical panel due to him finding voltage from a 24v PSU + to the earth of the panel and the - to earth each readings were 6vac which I was curious why we’d have a reading maybe a floating voltage? The others question that made me think was there was a loose earth from one of the Siemens level control units that was sparking. I checked the panel earth which was all good and live and neutral. I then disconnect the earth to the seimens unit and measured voltage between the seimens earthing terminal to the panel earth which was 110v ac what would this be? I couldn’t work out if there was a fault on the unit which was making the earthing terminal 110v but no fuses were blowing when contacted which also made me think Weather the 110v is being induced via the electronics? [/QUOTE]
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